3681361 has 4 divisors (see below), whose sum is σ = 3689712. Its totient is φ = 3673012.

The previous prime is 3681341. The next prime is 3681371. The reversal of 3681361 is 1631863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1631863 = 83 ⋅19661.

It is a cyclic number.

It is not a de Polignac number, because 3681361 - 2¹⁷ = 3550289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3681341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3475 + ... + 4408.

It is an arithmetic number, because the mean of its divisors is an integer number (922428).

Almost surely, 2^3681361 is an apocalyptic number.

It is an amenable number.

3681361 is a deficient number, since it is larger than the sum of its proper divisors (8351).

3681361 is an equidigital number, since it uses as much as digits as its factorization.

3681361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350.

The product of its digits is 2592, while the sum is 28.

The square root of 3681361 is about 1918.6873116795. The cubic root of 3681361 is about 154.4078831425.

The spelling of 3681361 in words is "three million, six hundred eighty-one thousand, three hundred sixty-one".